Package org.apache.solr.util

Common utility classes used throughout Solr

See: Description

Interface Summary

Interface	Description
ConcurrentLFUCache.EvictionListener<K,V>
ConcurrentLRUCache.EvictionListener<K,V>
FSHDFSUtils.CallerInfo
SolrCLI.Tool	Defines the interface to a Solr tool that can be run from this command-line app.
SolrLogLayout.TG	Add this interface to a thread group and the string returned by getTag() will appear in log statements of any threads under that group.

Class Summary

Class	Description
AdjustableSemaphore
BoundedTreeSet<E>	A TreeSet that ensures it never grows beyond a max size.
CommandOperation
ConcurrentLFUCache<K,V>	A LFU cache implementation based upon ConcurrentHashMap.
ConcurrentLFUCache.Stats
ConcurrentLRUCache<K,V>	A LRU cache implementation based upon ConcurrentHashMap and other techniques to reduce contention and synchronization overhead to utilize multiple CPU cores more effectively.
ConcurrentLRUCache.Stats
CryptoKeys	A utility class to verify signatures
DateMathParser	A Simple Utility class for parsing "math" like strings relating to Dates.
DefaultSolrThreadFactory
DistanceUnits	Used with a spatial field type for all distance measurements.
DOMUtil
EmptyEntityResolver	This class provides several singletons of entity resolvers used by SAX and StAX in the Java API.
FastWriter	Single threaded BufferedWriter Internal Solr use only, subject to change.
FileUtils
FSHDFSUtils	Borrowed from Apache HBase to recover an HDFS lease.
HdfsUtil
LongPriorityQueue	A native long priority queue.
MapListener<K,V>	Wraps another map, keeping track of each key that was seen via MapListener.get(Object) or MapListener.remove(Object).
NumberUtils
PrimUtils	Utilities for primitive Java data types.
PrimUtils.IntComparator
PropertiesInputStream
PropertiesOutputStream
PropertiesUtil	Breaking out some utility methods into a separate class as part of SOLR-4196.
RecordingJSONParser
RefCounted<Type>	Keep track of a reference count on a resource and close it when the count hits zero.
RegexFileFilter	Accepts any file whose name matches the pattern
RTimer	A recursive timer.
SimplePostTool	A simple utility class for posting raw updates to a Solr server, has a main method so it can be run on the command line.
SimplePostTool.BAOS
SolrCLI	Command-line utility for working with Solr.
SolrCLI.ApiTool	Used to send an arbitrary HTTP request to a Solr API endpoint.
SolrCLI.ConfigTool	Sends a POST to the Config API to perform a specified action.
SolrCLI.CreateCollectionTool	Supports create_collection command in the bin/solr script.
SolrCLI.CreateCoreTool
SolrCLI.CreateTool
SolrCLI.DeleteTool
SolrCLI.HealthcheckTool	Requests health information about a specific collection in SolrCloud.
SolrCLI.SolrCloudTool	Helps build SolrCloud aware tools by initializing a CloudSolrClient instance before running the tool.
SolrCLI.StatusTool	Get the status of a Solr server.
SolrLogLayout
SolrLogLayout.CoreInfo
SolrLogLayout.Method
SolrPluginUtils	Utilities that may be of use to RequestHandlers.
SolrPluginUtils.DisjunctionMaxQueryParser	A subclass of SolrQueryParser that supports aliasing fields for constructing DisjunctionMaxQueries.
SolrPluginUtils.DisjunctionMaxQueryParser.Alias	A simple container for storing alias info
SolrPluginUtils.IdentityRegenerator	A CacheRegenerator that can be used whenever the items in the cache are not dependant on the current searcher.
SpatialUtils	Utility methods pertaining to spatial.
SystemIdResolver	This is a helper class to support resolving of XIncludes or other hrefs inside XML files on top of a ResourceLoader.
TimeZoneUtils	Simple utilities for working with TimeZones
VersionedFile

Enum Summary

Enum	Description
PivotListEntry	Enum for modeling the elements of a (nested) pivot entry as expressed in a NamedList

Package org.apache.solr.util Description

Common utility classes used throughout Solr